Alabama

Several schools were closed or delayed Friday due to adverse conditions left in the wake of Thor, WSFA-TV said.

Ice likely contributed to a 14-vehicle pileup on Interstate 459 southbound Thursday afternoon, WBRC-TV reported. Irondale police noted five people were taken to hospitals, with two adults sustaining serious injuries. The interstate has since reopened.

Icy conditions were seen all over Alabama on Thursday, leading to major issues on state roadways. Accidents were reported on Interstate 65 north of Cullman, The Associated Press reported, which greatly slowed travel. Officials had to close elevated parts of I-565 in Huntsville because of ice, the report added. Travel problems could continue through early Friday because of subfreezing temperatures.

Gov. Robert Bentley declared a state of emergency ahead of the storm. Many schools and offices in northern Alabama were closed Thursday as the state hunkered down for another blast of freezing rain and sleet.

According to AP, only scattered power outages have been reported across the state.

Arizona

Flooding kept residents who live along Oak Creek Canyon from departing or returning to their homes, KSAZ-TV said.

A car lost control and was struck by a freight train crossing tracks at Route 66 in Flagstaff, Arizona, leaving one person injured, The Arizona Daily Sun reports.

California

A mudslide shut down a stretch of the Pacific Coast Highway in both directions early Sunday morning, The Los Angeles Times reports.

Bay Area residents were baffled Saturday when a storm dropped so much hail, people confused it for snow. The local NWS office confirmed although it looked “deceptively similar to snow, no snow fell below 4,000 feet” elevation.

It began snowing in those higher elevations of the Sierra Nevada late Friday, and the ski resorts reported receiving upwards of a foot of snow.

"We are thrilled," Melissa Matheney, a spokeswoman for Squaw Valley and Alpine Meadows ski resorts, told The San Francisco Chronicle. "We couldn't be happier with this storm. It exceeded expectations, which is fantastic."

Colorado

Multiple non-injury wrecks led to the partial closure of northbound I-25 Monday, Colorado State Patrol says. Around 9 a.m. local time, the highway was completely reopened.

Thor's new layer of snow is on top of piles of snow left by previous storms across the state in the last few weeks.

Illinois

Issues from Thor continued to linger into Thursday, with many roads in southern Illinois remaining snow- or ice-covered, according to the state DOT.

AP reported that the Illinois Secretary of State's office closed 10 offices Thursday due to dangerous roads. Those offices are expected to reopen Friday morning.

The DOT reported wet, icy conditions on major roadways Tuesday. The ice caused problems, including slide-offs and accidents, which briefly closed a stretch of I-57 Tuesday, according to The Chicago Tribune.

State police say there were at least four injury-causing accidents on I-74.

Indiana

Southern Indiana saw heavy snow from Thor after the state struggled with ice earlier in the week.

Icy roads snarled morning traffic in northwest Indianapolis Tuesday. WTHR reports that at least six accidents involving semi-trucks shuttered travel on I-65 and I-465. With overturned and jack-knifed semis on the road, closures began to pop up. Fox 59 reports that a salt truck was involved in one of the crashes on I-65 and I-465. On westbound I-70, Indiana State Police report slide-offs.

Iowa

The Montgomery County Sheriff's Office told Omaha.com a Carson, Iowa, woman was seriously injured Tuesday morning when her 2004 Ford Expedition rolled on an icy road.

Kentucky

Jefferson County Public Schools closed Friday, per the district website. Students will have a make up day in June.

Fayette County Public Schools were closed Friday due to adverse weather conditions, according to the district's website.

Snow plows across the state experienced obstacles trying to clear Thor's wintry mess, the Associated Press said. Chuck Wolfe, State Transportation Cabinet spokesman, said some snow plows were getting stuck in the heavy snow or blocked by disabled vehicles.

Lexington broke its single-storm total record with 17.1" of snowfall, up from 16.1" in 1917, according to the National Weather Service. The city also broke its all-time 24-hour snowfall record with 14.6" between 7 a.m. Wednesday and 7 a.m. Thursday, up from 13.5" in 1943.

Interstate 65 became a parking lot Thursday morning as heavy snow stranded drivers, according to local reports. Some motorists said they were stuck on the freeway for at least 12 hours. The closures were cleared Thursday night, however, traffic congestion remained heavy, Kentucky State Police trooper Paul Blanton told NBC.

In advance of the snow that hit Wednesday afternoon, central and eastern Kentucky experienced flooding, as a result of rain and snow melt.

"There are reports of high water and minor flooding all over," Monica French, a spokeswoman for the Kentucky Division of Emergency Services, told The Lexington News Herald Wednesday evening.

Water covered several roads and bridges, making travel difficult, but homes were not threatened, local officials reported. Gov. Steve Beshear said Wednesday evening he was watching the situation to decide whether a statewide emergency declaration is needed, the paper reported.

The University of Louisville will be closed again on Friday, the school announced.

Louisiana

Gov. Bobby Jindal declared a state of emergency Wednesday night ahead of Thor.

State officials closed I-49 from Shreveport to the Arkansas state line, and I-220 is closed around north Shreveport and Bossier City, AP reported.

Maryland

MARC train and commuter bus service were halted Thursday while light rail and subway schedules were modified, according to AP.

Michigan

A fatal three-car accident that occurred Tuesday afternoon was blamed on roads made slick by Thor's snow and ice, The Associated Press reported.

The crash occurred near Caro, about 80 miles north of Detroit, the report added. Authorities had not yet released the name of the person killed.

Several other accidents were reported in Genesee, Ingham and Washtenaw counties, officials told the AP.

Minnesota

I-94 closed for three hours in both directions Tuesday after a series of crashes clogged roads. State Patrol spokesperson Lt. Tiffani Nielson told KARE-TV a person was killed in one of the incidents after a semi hit a car being retrieved from a ditch.

The interstate reopened late Tuesday evening.

Nielson provided updates on state highways throughout the day, citing numerous crashes and a rolled semi. On I-494 near Concord Street in South St. Paul, Minnesota, a state trooper's car was struck, and the officer was transported to an area hospital.

Mississippi

Gov. Phil Bryant hdeclared a state of emergency ahead of Thor, according to the Clarion-Ledger.

Nebraska

Omaha was on the edge of Thor's precipitation Tuesday morning and saw freezing drizzle, leading to a glaze of ice across the Omaha-Council Bluffs area.

KETV anchor Alex Hoffman, citing updated reports from local hospitals Wednesday, told weather.com that 148 people were hospitalized in the Omaha area after they slipped and fell on ice. Injuries ranged from sprains to broken legs and arms to head injuries.

A motorist also died early Tuesday morning in Omaha when his vehicle veered off icy roads and crashed into a tree, Omaha.com reported. Patrick Dubas, 44, was unresponsive when rescue personnel arrived on the scene. Three other motorists were seriously injured in separate incidents.

New Jersey

Several Garden State schools were closed or delayed opening Friday due to the hazardous conditions Thor left behind, News 12 reported.

Gov. Chris Christie declared a state of emergency Wednesday night as the state prepared for Thor.

State offices and most schools were closed Thursday to keep people off the roads and home safe, AP reported. Speed limits were reduced on major highways, and mass transit was limited until the storm passed.

New York

Hazardous conditions prompted the closure or delays of several schools Friday, NBC New York reported. Here is a full list of affected schools.

Late Thursday morning, a Delta plane traveling from Atlanta to New York skidded off a snowy runway at LaGuardia Airport; you can read more about that story here.

The first waves of Thor left slick roads and poor visibility in Orange County earlier in the week. The conditions were blamed for a 23-vehicle pileup along I-84 Wednesday morning. Ten people were hurt, but state police said the injuries were minor.

Ohio

Southern parts of the state were hit hard by Thor's snowy blast, forcing the closure of some school districts on Thursday. Cincinnati Public Schools were given the day off, AP reported.

Oklahoma

Oklahoma City set a daily snowfall record Wednesday, with 4 inches dumped by Thor.

Pennsylvania

School District of Philadelphia schools, Philadelphia Archdiocese schools and several more remained closed Friday due to adverse weather conditions, CBS Philadelphia said.

Icy conditions Tuesday night prompted Penn State officials to cancel classes Wednesday for the first time in 8 years, the AP reported.

Abington Township near Philadelphia and others declared states of emergency Wednesday ahead of the area's switch from rain to snow.

Ice jams along Loyalhanna Creek in Ligonier Township forced about a half-dozen residents to evacuate when the waterway overflowed its banks early Wednesday morning, according to a separate AP report.

Tennessee

Shelby County Schools closed Friday due to dangerous conditions on bus routes and campuses, according to the district's website.

Four people died in Tennessee from motor-vehicle accidents related to the storm. A 46-year-old man was killed in a car accident, according to The Tennessean, but additional details have not been released.

A second death occurred when a 35-year-old Wilson County woman was killed in a weather-related crash on Wednesday, AP reported.

Texas

Dallas/Fort Worth International Airport reported 2.5 inches of snow Wednesday, setting a daily record for the city.

Wednesday night, NBC DFW reported a weather-related vehicular accident that resulted in one fatality on Highway 380 near Little Elm. Additional details were not yet released.

The Dallas Area Rapid Transit announced a modified schedule beginning at 8:30 p.m. Wednesday in response to the weather. Shuttle operated in place of trains in several locations.

Virginia

Thursday evening, a man was found dead in a car swept away by flood waters in Davenport, the Associated Press reported. AVirginia State Police team located the missing vehicle before 5 p.m. and found 60-year-old Randy O'Quinn of Haysi inside. O'Quinn was the passenger in the vehicle that was swept away just after 11 p.m. Wednesday night.

Virginia State Police responded to nearly 500 accidents and 222 disabled vehicles between noon and 4 p.m. Thursday, the Associated Press reported. The police also received over 1, 150 emergency calls during that timeframe.

In addition to the winter weather, about 70 roads in southwestern Virginia were closed because of flooding and landslides, AP also reported.

Washington D.C.

Hazardous conditions prompted the closure of D.C. area schools Friday, NBC Washington reported. Federal government offices were operating on two-hour delays, as well.

Dangerous roads led to several accidents Thursday, NBC Washington reported. A jackknifed semi and flipped snow plow were among the incidents.

West Virginia

Parkesburg reported 12 inches of snow, reports AP, while as much as 11 inches were recorded in Huntington.

More than 80,000 customers were without power in the state Thursday morning, according to West Virginia's utility companies. Warming stations and shelters were opened in several counties, including Cabell County where about 10,000 residents were without power Thursday evening, according to AP.

Severe flooding occurred Wednesday across large swaths of northern and central West Virginia. A local state of emergency was declared for Monongalia County, West Virginia, because of flooding in the region, as several homes in the county were evacuated. The storm closed roads in three dozen counties due to high water, rock falls, mudslides and downed trees, reports AP, and many other streets and interstates were clogged with snow.

Wisconsin

The AP reports that one person died after a crash on Highway 41 in Brown County, Wisconsin. Behind the crash, a line of buses got stuck.

Wyoming

Three adults died Monday evening when two sedans collided about 40 miles north of Casper near the town of Midwest. One of the drivers was thrown from his vehicle and hit by an oncoming pickup truck, according to The Casper Star-Tribune. The driver and a passenger in the other vehicle also died, but a two-year-old child survived without major injuries.

An airplane slid off a runway at New York City's LaGuardia Airport on Thursday, March 5, 2015 during Winter Storm Thor. There were no reports of serious injuries. (Twitter/@NYPDSpecialops)

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